Hello all, For those who are new to Vue, I'm uploading this picture. I myself just now learned that boolean differences could be used with primitives against terrains, so I wanted to show a small example of the possibilities. I didn't let this picture render completely, and then I jpeg'ed it to death to make the file smaller. It's not supposed to be a final "product", so please don't yell at me. :) I couldn't help myself in adding the coconut trees and reeds. :) Anyway, the cave which cuts all the way through was just a simple cylinder, and the round cutout in the upper mid right, was just to illustrate it a little more obviously. I've also been playing around with using terrains with other terrains and making boolean differences out of them as well, and believe me, if you haven't tried that out yet, you ought to, because it seems that the options for unusual or just DIFFERENT shapes are limitless. Very cool feature! :) Tonight after work, I'm going to make some bizarre shaped .OBJ's with Amorphium to try to get more realistic objects to use as cave entrances and terrains. Speaking of which, Amorphium is great for creating oddly shaped things such as rocks and mountains, and whatnot. And, if you have the patience, it can be used for making all kinds of other great stuff as well. I know I haven't been posting many pictures, but I have made quite a few... I'm saving them for my website, which is still in progress. :) Once again, this is just an idea...I'd be interested in knowing who else out there is using similar techniques. :) Cheers, Mike